package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author kabuRa
 * @create 2022-08-25 17:06
 */
@RequestMapping("/report")
@RestController
public class ReportController {
    @Reference
    MemberService memberService;

    @Reference
    ReportService reportService;

    //折线图
    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        Map<String, List> map = new HashMap<>();
        List months = new ArrayList();
        //2019-06
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.YEAR, -4);
        calendar.add(Calendar.MONTH, -3);

        //日期x轴
        //System.out.println(new SimpleDateFormat("yyyy-MM").format(calendar.getTime()));
        for (int i = 0; i <= 12; i++) {
            calendar.add(Calendar.MONTH, 1);
            months.add(new SimpleDateFormat("yyyy-MM").format(calendar.getTime()));
        }
        map.put("months", months);
        //数量y轴
        List memberCount = memberService.findByRegTime(months);
        map.put("memberCount", memberCount);


        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }
    //饼图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        try{
            List<Map<String, Object>> list = memberService.findStmealCount();
            return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,list);
        }catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    //报表
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try{
            Map<String,Object>  map=reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try{
            //1.获得数据

            //远程调用报表服务获取报表数据
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //2.读取模板文件
            //获得Excel文件的绝对路径（POI要求）
            String realPath = request.getSession().getServletContext().getRealPath("template" + File.separator + "report_template.xlsx");
            XSSFWorkbook excel = new XSSFWorkbook(realPath);
            XSSFSheet sheet = excel.getSheetAt(0);

            //3.按照模板写入数据
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }


            //4.使用文件流进行下载
            ServletOutputStream out = response.getOutputStream();
            //设置文件类型
            response.setContentType("application/vnd.ms-excel");
            //设置文件头
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            excel.write(out);
            out.flush();

            out.close();
            excel.close();


            return null;
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response){
        try{

            String jrxmlPath =request.getSession().getServletContext().getRealPath("template")+File.separator+"health_business3.jrxml";

            String jasperPath=request.getSession().getServletContext().getRealPath("template")+File.separator+"health_business3.jasper";
            //编译
            JasperCompileManager.compileReportToFile(jrxmlPath,jasperPath);

            //给parameter准备数据
            Map<String, Object> result = reportService.getBusinessReportData();
            //给filed准备数据
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //注入数据
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));


            //4.使用文件流进行下载
            ServletOutputStream out = response.getOutputStream();
            //设置文件类型
            response.setContentType("application/pdf");
            //设置文件头
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");
            //输出数据
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);

            out.flush();
            out.close();

            return null;
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }



}